Converting an internet dongle into a flash-drive

Hello!

I just found my 5-year-old internet dongle in my attic (Internet dongle as in LTE I think)I remembered that It had data on it for driver support and stuff (it had like 500 MB)

I thought of this plan to get that storage working again and to convert into a full USB flash drive (If that's possible)So I plugged it in and... nothingIt didn't show up as a USB storage device.I checked on Hardinfo and it detected it as a USB device (Specifically a 'Huawei Technologies Co., Ltd. E398 LTE/UMTS/GSM Modem/Networkcard')So It is detected.I wanted to mount it as a USB device so I used mount (But It was not already given a name like sda or sdb or I mounted by-id to /mnt/)I checked In the folder and found the files and made a backup of it and then I tried to erase all data from itBut, It didn't work. It said It was a read-only filesystemI checked on dmesg and it said it was a USB mass storage deviceI thought all storage devices were mounted as /dev/sd*?I would like to mount it like that.Also, I'd like to make it rw and I would want to format it as ext4Is this possible? If yes then how?

Re: Converting an internet dongle into a flash-drive

Disable usb_modeswitch for the respective device.Okay, I skipped that you already managed to mount the dev.If it's an RO flash, there's nothing you can do about it.The manufacturer probably released it that way, so that users don't accidentally erase the shipped drivers and bloatware for which the flash space is usually used.